36861144 has 32 divisors (see below), whose sum is σ = 92387520. Its totient is φ = 12255776.

The previous prime is 36861137. The next prime is 36861199. The reversal of 36861144 is 44116863.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8899 + ... + 12365.

It is an arithmetic number, because the mean of its divisors is an integer number (2887110).

Almost surely, 2^36861144 is an apocalyptic number.

It is an amenable number.

36861144 is an abundant number, since it is smaller than the sum of its proper divisors (55526376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36861144 is a wasteful number, since it uses less digits than its factorization.

36861144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919 (or 3915 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 36861144 is about 6071.3379085668. The cubic root of 36861144 is about 332.8048166755.

The spelling of 36861144 in words is "thirty-six million, eight hundred sixty-one thousand, one hundred forty-four".